https://pages.htgaa.org/2026b/jay-handfield/week-01-hw-project-ideas/index.htmlBackground Transparent polyethylene films used to build poly-tunnels and low cost greenhouses has transformed agriculture across the world. Chinese Solar Greenhouses and polytunnels produce 30-37 percent of China’s vegetegables The Almeria Region in Spain produces 50% of Europe’s winter supply of fruit and vegetables in extensive poly-tunnel agriculture. 70% of tomoatoes consumed in the US are grown in poly-tunnels and platic greenshouses. These uses allow people to have a healthy diet of fresh fruit and vegetables all year around in a way that minimizes fossil-fuel used in heating and transportation (of course not eating fresh fruits and vegetables in the off-season is always lower impact). Unfortunately the plastic used to to cover these greenhouses is a fossil-fuel byproduct that only lasts 1-3 years before it needs to be disposed.Hugoen